Plan to buy to rent to tourist visiting India because it's hard for tourist to get a prepaid sim and actually be able to use the minute they land. That's why
Helping the tourist remove the hassle
Not for illegal use
Its better you go to local shop to give a Sim of Airtel (without proof Sim cards) They will give you with extra charge
We can not give you sim card own our proof as it can be used for wrong purpose
Actually, its very easy to get a sim card for Tourist just need Right person
Buy sim cards for any purpose is illegal in India (without your Personal proof)